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Bruce Murray Space Image Library

Elongated "butterfly crater" on Mars

Elongated "butterfly crater" on Mars
Elongated "butterfly crater" on Mars A very unusual elongated crater located north of Acheron Fossae on Mars. The crater is 15 kilometers long but only half that wide. NASA / JPL / UA / mosaic by Emily Lakdawalla

This is a mosaic of three images captured by the THEMIS instrument on Mars Odyssey in its daytime mode. Source images: V13947003, V30669005, and V12100004.